Device and Sensors Working Group

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As defined in its charter, the mission of the Device and Sensors Working Group (DAS WG) is to create client-side APIs that enable the development of Web Applications that interact with device hardware, sensors, services and applications such as the camera, microphone, proximity sensors, native address books, calendars and native messaging applications.

Device and Sensors Roadmap

The Working Group aims at gathering consensus on its specifications, both within the Working Group and with the community at large, working through an iterative process with implementors to ensure that the specifications are implementable and implemented. See also the Standards for Web Applications on Mobile: Current State and Roadmap on how this work fits in with the broader context of the Web platform.

The most recent version is highlighted.

Specification Internal draft Public Working draft Stable draft (wide review start) Implementors feedback (CR) Proposed Standard (PR) Standard (Rec) Test Suite Notes
Sensor Framework
Generic Sensor API
Editor's Draft
9 Aug 2017 Q2 2017 complete
An abstract Sensor base class extended by concrete sensors.
Environment Sensors
Ambient Light Sensor Editor's Draft
14 Aug 2017 Q2 2017 incomplete
Environment sensors that extend Sensor.
Proximity Sensor Editor's Draft
19 Jul 2016 obsoleted (GitHub)
Motion Sensors
Motion Sensors Explainer Editor's Draft
30 Aug 2017 An introduction to low-level and high-level motion sensors.
Accelerometer Editor's Draft
14 Aug 2017 incomplete
Low-level motion sensors that extend Sensor.
Gyroscope Editor's Draft
14 Aug 2017 incomplete
Magnetometer Editor's Draft
14 Aug 2017 incomplete
Orientation Sensor Editor's Draft
14 Aug 2017 incomplete
High-level motion sensor that extends Sensor.
Vibration Editor's Draft
17 Nov 2011 19 Jun 2014 9 Sep 2014 18 Aug 2016 (PER) 18 Oct 2016 (2nd ed) approved
Battery Status Editor's Draft
15 Sep 2011 28 Aug 2014 7 Jul 2016 29 Mar 2016 approved Uncertain future
HTML Media Capture
Editor's Draft
13 Dec 2012 19 Jun 2014 31 Aug 2017 approved HTML form extensions for media capture
Wake Lock Editor's Draft
Updated when Editor's Draft is updated Plan to be reworked heavily in light of wide review feedback


If you are employed by a W3C Member and want to join this group, please ask your Advisory Committee Representative to nominate you to the group as explained in the relevant instructions. If you are not employed by W3C Member and have specific expertise to bring to this group, the said instructions explain how to get Invited Expert status. See the list of current participants.

Meetings Subscribe to icalendar feed of upcoming teleconferences

Fortnightly 60 minute teleconference Thursdays, at 9am US Eastern Time (specific schedule mantained in the group teleconferences icalendar) on WebEx bridge which can be joined either on your computer or by phone - see details for joining the call. We will continue to use zakim to manage the queue (q+, q-, q? etc) but it is not integrated with WebEx. For more information see the WebEx best practices.

IRC channel #dap on port 6665 (Web IRC client).

Please note that attendance of teleconferences is restricted to registered WG participants and persons invited by the chairs. On each call please register attendance in IRC using:

Present+ firstName_lastName

We're tracking action items using Tracker. You may see your actions using MyTracker.

Upon completing actions, please move them to the Pending status, and inform the WG with a summary of the action results, (including ACTION-# in the body of the message so it is linked to the action record). Text lists of pending actions and open actions are also available.


The main communication channel for this group is the publicly archived mailing list <>.

Member-confidential messages and logistical discussions can be addressed to the member-only archived mailing list <>

Patent Policy

This group operates under the W3C Patent Policy - see its Patent Policy status for more details.


Interested in history? It's now on its own page!